The Hydro-Photon SPPF-RP includes the following items:
The SteriPEN Classic Portable UV Pen With Pre-Filter is a portable water filter that utilizes ultraviolet light to purify drinking water. The Classic SteriPEN features a FitsAll filter that improves drinking water quality, as well as a 40x40 micron screen Pre-filter that removes particulates in water. This emergency UV light can purify 200 half-liters of water with one set of four AA lithium batteries, providing you with SteriPEN's most reliable water filter pen.
SteriPEN Classic Portable UV Pen With Pre-Filter specifications: